Friend is jealous of relationship

Before my boyfriend came into the picture, me and this friend would hang out a couple times a week. However since now I have a boyfriend we don't hang out much. I can hear you guys saying "That's the problem!".

Honestly, this is the situation:
Ever since my boyfriend came into the picture, my friend got really jealous. She would call and text me when I am with him. I'm aware that answering calls (unless work, or emergencies) is rude when company is around. My friend finds it rude as well. When I don't answer my boyfriend, I'll text him why and he's cool with it. On the other hand, my friend hates it when I am with my significant other and won't answer her calls. We talked about the issue. She addressed that she often feels lonely and needs someone to chat with. I also addressed that she doesn't like it when I answer my boyfriend's calls. Her response was "You're always with him". I told her that we could text each other. She would text me whatever and not talk to me for a bit.

I got the impression that she is jealous of my significant other being with me.

The last time my friend and I saw each other we had a talk about the issue. I ended up changing the subject because she got emotional. She thinks that she and my other friends are not as important. I said to her "Clearly that's not the case here! I'm in a relationship where compromises and sacrifices occur.".

To this day this issue hasn't been resolved. It seems like even if my friend and I hang out she would get jealous of my relationship.

What do y'all think? Does she sound like she want to hang out more? I kind of figured she has feelings for me. Idk honestly